Bung-bush-molding machine



(No Model.)

A. G. ANDERSON.` BUNG BUSH MOLDING MACHINE. No. 341,369

UNITED STATESV PATENT OFFICE.

ANTON G. ANDERSON, OFCHICAGO, ILLINOIS. l

BUNG-BUSH-VMOLDING MACHINE.

SPECIFICATION forming part of Letters Patent 170.341,369, dated May 4,1886.

Application filed December 11, 1885. Serial No. 185,420. (No model.)

To @ZZ whom, t iii/tty concern;

Be it known that I, ANTON G. ANDERsON a citizen of the United States, residing at Chicago, Illinois, have invented certain new and useful Improvements in Molding Bushes, of which the following is'a speciiication.

The object of my invention is to construct a machine to make the interior or core portion of molds for bung and other bushes-such, for example, as have their exterior threaded portion formed by a mold made in the machine shown and described in my Letters Patent No. 335,331, granted February 2, 1886, so that when the two liasks containing the molded sand are put together they are ready for use.

In the accompanying drawings, in which like letters of reference indicate corresponding parts, Figure l illustrates in longitudinal vertical sectional View a machine constructed in accordance with my present invention, the flask containing the molded sand being in place on the table thereof. Fig. 2 is a plan View with the flask removed, taken on the line x x of Fig. l.V Fig. 3 is a transverse vertical section taken on the line y y of Fig. 2, and Fig. 4 a sectional View of a single mold complete for casting a bung-bush.

The letter L designates a frame of suitable construction, having a dash-receiving table or bed, B, provided with a series of circular or polygonal openings. In the lower portion of the frame L, and beneath the table or bed, are secured suitable guide-posts, E, which receive and sustain the plate F by means of tubular bars T. The upper side of the plate F has secured to it the tubularl patterns G, for shaping the sand to form the interior Wall of a bunglbush. These patterns are of such shape and size as to t nicely in and pass through the openings in the table. The tubular bars T are provided at one side with rack-teeth t, which are engaged with pinions J, secured upon a rotary shaft, M, journaled horizontally in the frame, the outer end of said shaft being provided with a suitable lever for operating it.

The letter N designates suitable standards, screw-threaded at their lower ends and turning into similarly-threadedsockets, O. These standards are thus made adjustable, and suitable lock-nuts may be provided to secure them in place when adjusted. The upper ends of these standards extend through the plate F into the space formed by the tubular patterns C, andare there provided with suitable heads or plates, o, to shape and support the end of the core as the sand is packed into the pattern. Theplane of the uppersurfaces of these heads ois somewhat below the plane of the upper surface of the bed B.

The operation is as follows: The ask is placed upon the table, the standards XV adjusted until the heads o are the proper distance below the surface of the bed. The patterns C are then elevated by means of the lever K turning shaft M, and with it the pinions engaging the racked tubular bars T 011 the supporting-plate F until the Harige-forming portion projects the required distance above the surface of the bed. Sand is next supplied to the iiask and thoroughly tamped Or packed into and around the patterns. When this has been completed, the pattern-plate, with the pattern O, is lowered by a reverse movement of the handle K, and the ilask removed, after which it is ready to be connected with another flask having sand molded to form threads, as indicated in Fig. 4..

Vhat I claim, and desire to secure by Letters Patent, is

In a machinefor making molds for bungand other bushes, the combination of the table or bed provided with suitable Openings, the tubular patterns C, secured upon a movable pattern-carrying plate beneath said table, and the fixed but longitudinally-adj ustable standards or supports N, passing through said plate, the said standards or supports being provided with heads o, located and fitting in said tubular patterns, and mechanism for raising and lowering the tubular pattern-carrying plate, substantially as shown and described.

ANTON G. ANDERSON. Witnesses:

THOMAS A. BANNING, M. B. BANNING. 

